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South Dakota Approves Chlorine-Free Pools for Small Lodges
New legislation allows establishments with 15 or fewer rooms to install biofilter systems for their pools.
Published on Feb. 22, 2026
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The South Dakota House of Representatives has approved a bill that would allow small lodges with 15 or fewer sleeping rooms to install biofilter systems for their swimming pools, enabling them to offer chlorine-free swimming experiences for guests. The bill, sponsored by Rapid City Democrat Nicole Uhre-Balk, defines a biofilter as a system that uses natural filtration processes to clean water instead of relying on chlorine. The systems would need to be approved and inspected annually by the state Department of Health.
Why it matters
This legislation provides an opportunity for small lodges in South Dakota to differentiate themselves by offering a more natural, chlorine-free swimming experience for guests. It aligns with growing consumer demand for eco-friendly and chemical-free options, particularly in the hospitality industry. The move also reflects the increasing popularity of natural pool systems, which have become more common in Europe and are starting to gain traction in the United States.
The details
Under the bill, small lodges that wish to use biofilter systems for their pools would need to obtain an annual permit from the state Department of Health. The systems would need to be approved by the department, which would also be required to establish rules for water quality testing, maintenance requirements, and the application process. The filtration systems would need to be inspected by the department once a year. All existing health and safety standards would still need to be met for any non-chlorine pool.
- The South Dakota House of Representatives approved the bill on February 22, 2026.
- The bill now moves to a state Senate committee.
The players
Nicole Uhre-Balk
A Rapid City Democrat who sponsored the bill in the South Dakota House of Representatives.
Bobbi Andera
A Republican state representative from Sioux Falls who spoke in favor of the bill, citing her positive experience with a friend's chlorine-free pool.
Spencer Gosch
A Republican state representative from Glenham who was the lone no vote on the bill, citing concerns about efficiency and cleanliness.
South Dakota Department of Health
The state agency that would be responsible for approving the biofilter systems, issuing permits, and establishing rules for water quality testing and maintenance.
What they’re saying
“It was amazing.”
— Bobbi Andera, State Representative (South Dakota Searchlight)
“No filtration system, chemical or biological, changes the fact that kids will be kids.”
— Nicole Uhre-Balk, State Representative (South Dakota Searchlight)
What’s next
The bill now moves to a state Senate committee for consideration.
The takeaway
This legislation represents a small but significant step forward in providing more eco-friendly and chemical-free swimming options for visitors to small lodges in South Dakota's Black Hills region. It reflects growing consumer demand for sustainable hospitality experiences and could inspire similar initiatives in other states.
